Designing a search strategy to identify and retrieve articles onevidence-based health care using MEDLINE     

Jane Harrison 《Health information and libraries journal》1997,14(1):33-42

Thepractice of evidence-based health care requires that information on methodology be identifiedfrom databases such as MEDLINE. Up until this year there have been no designated medicalsubject headings (MeSH) for evidence-based health care. ‘EVIDENCE-BASEDMEDICINE’ appears as a MeSH term from 1997. The absence of designated MeSH forthis concept prior to 1997 provides a challenge to the searcher. This paper describes the creationof a MEDLINE search strategy to retrieve articles on the methods of evidence-based health carepublished prior to the introduction of the new term, where an optimal combination of free-textand MeSH terms is required to identify relevant material. The study examines both free-text andsubject heading searching and attempts an optimal balance of sensitivity and specificity. It beginsby examining separate free-text and subject heading searches. Sensitivity of the subject headingsearch was 33% and specificity 80%, while the free-text search produced asensitivity of 50% and a specificity of 67%. The final strategy, combining bothapproaches, was more successful with sensitivity reaching between 82 and 90% andspecificity 83%. It is therefore possible to devise a search strategy to retrieve articles on themethods of evidence-based health care with relatively successful rates of sensitivity andspecificity. The limitations of MEDLINE, however, necessitate the use of additional approachesin identifying articles on the methods of evidence-based health care.  相似文献   

Antecedent and consequent stimuli in teacher-child dyads     

M F Harrison  T L Layton  T D Taylor 《American annals of the deaf》1987,132(3):227-231

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Frontline employees in the health clinic: Impression management multiplexing when performing in-the-round     

Millie A. Harrison  William Roth Smith  Mackenzie R. Greenwell  Keri K. Stephens 《Communication monographs》2018,85(3):309-330

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The relationship between individual instructional characteristics and the overall assessment of teaching effectiveness across different instructional contexts   总被引：1，自引：0，他引：1  

Joseph M. Ryan  Paul D. Harrison 《Research in higher education》1995,36(5):577-594

There is an ongoing debate in the student evaluation of teaching literature about whether an overall rating or factorial dimensions of teaching effectiveness should be used in personnel decisions. Marsh and his colleagues have advocated the use of a weighted average approach to computing overall evaluations. A policy-capturing experiment was carried out where students in three different instructional contexts made overall evaluations of hypothetical instructors based on a manipulation of the teaching factors in Marsh's SEEQ. The results indicated (1) amount learned was consistently the most important factor affecting overall evaluations; (2) course difficulty was consistently the least important factor affecting overall evaluations; and (3) there was a strong similarity among the three groups in the relative importance of the various teaching factors in arriving at an overall evaluation. The implications of this research are discussed, as well as directions for future research.  相似文献   

Factors underlying students' decisions to use mobile devices in clinical settings     

Amanda Harrison  Megan Phelps  Arany Nerminathan  Shirley Alexander  Karen M. Scott 《British journal of educational technology : journal of the Council for Educational Technology》2019,50(2):531-545

University policies prohibiting use of mobile devices by medical students during clinical placements are contradicted by regular use by physicians. Consequently, many students use their mobile devices, which can be beneficial for learning but may put patient privacy at risk. This study explores the reasons underlying students' decisions about using mobile devices in clinical settings. We used a mixed-methods sequential explanatory design involving a questionnaire and focus groups. Qualitative data from the questionnaire and focus groups was analysed through thematic analysis. We found students were aware of the risks mobile devices posed to professionalism and medical practice. Despite prohibitions, many made individual decisions to use mobile devices because the benefits outweighed the risks. These students were influenced by an organised, strategic approach to learning and a motivation to comply with the beliefs and behaviours of their medical teams and conform to physicians' directives in order to participate in their community of practice. Many students appear to be transferring everyday use of mobile devices to clinical settings. There is a need to understand and promote aspects of learning that are enhanced by mobile devices in clinical settings, while articulating clear guidelines and boundaries compatible with the professional behaviour expected of students.  相似文献   

Speech education in secondary schools— a bibliography     

Elmer Harrison Wilds 《Quarterly Journal of Speech》2013,99(2):184-195

Public broadcasting's development in the United States should be viewed with an eye towards Canada's experience. Despite tranquil appearances, the CBC has been caught between the widely professed independence of the Corporation and the realities of the situation. There is ample evidence of control through political appointments, financial restraints, directives on programming, and incessant investigations.  相似文献   

A Lesson from the Weeds     

Elizabeth Harrison 《Religious education (Chicago, Ill.)》2013,108(1):17-19

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RECENT ARTICLES AND PAMPHLETS     

Harrison S. Elliott 《Religious education (Chicago, Ill.)》2013,108(6):555-558

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The influence of gender-related beliefs and conceptions of ability on women learning the hockey wrist shot     

Belcher D  Lee AM  Solmon MA  Harrison L 《Research quarterly for exercise and sport》2003,74(2):183-192

The purpose of this study was to determine the influence of beliefs about gender appropriateness and conceptions of ability on perceived and actual competene and patterns of behavior during practice of the hockey wrist shot. Sixty-eight undergraduate women formed four treatment conditions based on their beliefs about gender appropriateness and conceptions of ability. Four teachers taught across the treatment conditions for a total of 16 learning groups. Data were collected through a three-part questionnaire and from audio-video taping of the entire episode to ascertain the paticipants' competency beliefs, effort, and performance. Gender appropriateness impacted the participants' perceptions of competence and actual performance in the study, while beliefs about conceptions of ability did not produce a significant difference. This study reaffirms that educators must work diligently to combat the stereotypical beliefs many hold with respect to the gender appropriateness of physical activities.  相似文献   

The Child's Spiritual Nature     

Elizabeth Harrison 《Religious education (Chicago, Ill.)》2013,108(5):179-180

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